Both of these features are much needed tools to help users find tagged URIs. These tools will greatly assist users in researching related tags and to find good, related content to stuff they are interested in.
Josh released a recommendation tool a few days ago:
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We’ve released the new recommendation engine. If you have more than ten urls saved in a tag, you will be offered several urls as well as other people’s tags that the system thinks you will be interested in. The URL pages also now offer the chance to see other related URLs.
If you are on a particular del.icio.us user page (del.icio.us/username/tag), there is a link to see “recommended” tags that other people have used. This information is extremely useful in researching specific tags and how other people are tagging similar URIs. Related URLâ€™s are also recommended in the URL page of a bookmark.
Josh released search a few hours ago:
I’ve released a simple implementation of search across all users. If you are logged in, hit “search” and then be sure you check off “entire site.”
This has been a badly needed service and others have tried to fill the void while Josh built it. There is now a search bar at the top of your personal Del.icio.us page (you must be logged in), and you can search your own tags or click “search entire site” and get tag results across all users. I’ve tested it out and it works very well.
I’m not sure if the new search feature allows searching of multiple tags – an attempt gave me an internal server error. This is an important feature to be able to filter results accross multiple tags.
I’m hoping he adds a feed link for results in the very near future.